LOG114EVM Datasheet, PDF (2/21 Pages) Texas Instruments – LOG114EVM User Guide

Overview
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1 Overview
The LOG114 is a single-supply, high-speed, precision logarithmic amplifier. This device computes the
logarithm or log-ratio of an input current or voltage relative to a reference current or voltage. The
LOG114EVM (shown in Figure 1) is a ready-to-use platform for evaluating the performance of the
LOG114 in various configurations. This document gives a general overview of the LOG114EVM, and
provides a general description of the features and functions to be considered while using this evaluation
module.
Figure 1. LOG114EVM
1.1 Getting Started
Tested at the factory over a wide range of input currents, the LOG114EVM comes ready to use and
includes this Quick Start User’s Guide. Use of the LOG114EVM requires a 5-V power source, an input
source such as a photodiode or resistor, and a digital voltmeter or oscilloscope.
1.2 Related Documentation from Texas Instruments
The following documents provide information regarding Texas Instruments' integrated circuits and support
tools for the LOG114EVM. This user's guide is available from the TI web site under literature number
SBOU110. Any letter appended to the literature number corresponds to the document revision that is
current at the time of the writing of this document. Newer revisions may be available from the TI web site,
or call the Texas Instruments' Literature Response Center at [phone] or the Product Information
Center at [phone]. When ordering, identify the document by both title and literature number.
Related Documentation
Document
LOG114 Product Data Sheet
LOG114 TINA-TI Reference Design
LOG114 TINA-TI Spice Model
Literature Number
SBOS301
SBOM384B
SBOM385B
2
LOG114EVM User Guide
Copyright © 2011, Texas Instruments Incorporated
SBOU110 – September 2011
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